2003•Indian Journal of Agricultural ResearchRequires access

COMBINING ABILITY ANALYSIS FOR YIELD AND SOME GROWTH CHARACTERS IN MAIZE (ZEA MAYS L.)

M.K. Rana, Vinod Kapoor

Abstract

Combining ability studies were conducted in a 10 x 10 diallel crosses (excluding reciprocals) among ten inbred parents and F 1 cross combinations for yiekl and some growth parameters. The studies revealed significant GCA and SCA variance estimates for an the characters studied. Preponderace of non-additive gene effects was observed in the expression of an the traits studied. Parent P 10 was found to be good general combiner for an the growth parameters while P 2 was good for grain yield and leaf growth rate. Cross combination P 3 x P 8 had good SCA effects for an the traits studied and is expected to yield segregants having desirable character associations of yieldwith growth parameters. Cross combinations P 4 x P 6, P 5 x P 8 and P 5x P 7 are desirable for higher grain yield

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Key concepts: Diallel cross, Zea mays, Grain yield, Yield (engineering), Inbred strain, Forensic science, Mathematics, Veterinary medicine